/* * JFFS2 -- Journalling Flash File System, Version 2. * * Copyright © 2006 NEC Corporation * * Created by KaiGai Kohei * * For licensing information, see the file 'LICENCE' in this directory. * */ #include #include #include #include #include #include #include #include #include #include #include #include "nodelist.h" /* ---- Initial Security Label Attachment -------------- */ int jffs2_init_security(struct inode *inode, struct inode *dir) { int rc; size_t len; void *value; char *name; rc = security_inode_init_security(inode, dir, &name, &value, &len); if (rc) { if (rc == -EOPNOTSUPP) return 0; return rc; } rc = do_jffs2_setxattr(inode, JFFS2_XPREFIX_SECURITY, name, value, len, 0); kfree(name); kfree(value); return rc; } /* ---- XATTR Handler for "security.*" ----------------- */ static int jffs2_security_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size, int type) { if (!strcmp(name, "")) return -EINVAL; return do_jffs2_getxattr(dentry->d_inode, JFFS2_XPREFIX_SECURITY, name, buffer, size); } static int jffs2_security_setxattr(struct dentry *dentry, const char *name, const void *buffer, size_t size, int flags, int type) { if (!strcmp(name, "")) return -EINVAL; return do_jffs2_setxattr(dentry->d_inode, JFFS2_XPREFIX_SECURITY, name, buffer, size, flags); } static size_t jffs2_security_listxattr(struct dentry *dentry, char *list, size_t list_size, const char *name, size_t name_len, int type) { size_t retlen = XATTR_SECURITY_PREFIX_LEN + name_len + 1; if (list && retlen <= list_size) { strcpy(list, XATTR_SECURITY_PREFIX); strcpy(list + XATTR_SECURITY_PREFIX_LEN, name); } return retlen; } const struct xattr_handler jffs2_security_xattr_handler = { .prefix = XATTR_SECURITY_PREFIX, .list = jffs2_security_listxattr, .set = jffs2_security_setxattr, .get = jffs2_security_getxattr };